A "schoolie" was left with facial injuries after he and three friends were allegedly assaulted by an associate of the Bandidos outlaw bikie gang, armed with glass bottles, on the Gold Coast at the weekend.

The four school-leavers, aged 18, were walking back to their unit on Chevron Island, near Surfers Paradise, when they were confronted by two women at the intersection of Stanhill and Thomas drives shortly after 12.30am on Saturday.

An argument followed before the women left and returned a short time later with an associate of the Bandidos outlaw motorcycle gang, armed with glass bottles.

One school-leaver from NSW was allegedly assaulted and his phone and credit card stolen.

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He suffered minor facial injuries and was treated at the scene by paramedics.

About an hour later, a 23-year-old man was taken to Gold Coast Hospital with serious facial injuries after he was mugged for his mobile phone and wallet by a group of men on Thomas Drive.

And about 2.30am, a 34-year-old man was hospitalised after being threatened with a knife and assaulted on Chevron Island. His two mobile phones and wallet were stolen.

"Investigations into whether the incidents were linked is continuing," police said in a statement.

The Bandidos' associate, 31, and a woman, 18, were arrested on Saturday morning, after police managed to track the car they were travelling in.

Police also managed to recover the teen's phone and credit card.

The pair have been charged over the schoolie's assault and are due to face Southport Magistrates Court this morning.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or crimestoppers.com.au.